Cascade Range


Scientists here present a 55 million year plate tectonic and volcanic story - this is how the Pacific northwest of the United States and Canada, including the land and volcanoes, were created.


Mount Rainier National Park, Washington, USA


Summer Thunderstorm and Mount Shasta, Siskiyou County, CA by 4 Corners Photo
Via Flickr:
Thunderstorms form around Mount Shasta on a summer afternoon in Siskiyou County, California. Shasta is the most voluminous stratovolcano in the Cascade Volcanic Arc.